 | September 13, 2012 Breaking news from America's top photo magazines |   | |  | The best reader-submitted photos of the month Every month, we ask our talented readers to share their best work with us in the Your Best shot contest. This month's entries were nothing short of excellent. In fact, it took us a bit longer than usual to narrow it down to the typical 30 image gallery. |
| | It's not as burly as the D800 or D4, but it costs just $2,100 | | Big sensor, meet little body | | A camera can be more than a purely visual tool |
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Q. What does it mean if a card is "write-protected?"
A. The secure digital (SD) memory card is so called because it can be write-protected via a tiny slider switch on its side edge—a switch that may well be the most low-tech component in a digital camera. The switch has no electronic coupling with the card, and in fact does nothing at all except to slide from one position to the other. It’s merely a simple mechanical coupling that can be read by a mechanical feeler in the camera’s card slot, which in turn signals the camera to block data from going to the card—the camera (or computer/card reader) does the securing. If the switch breaks off (they do with some frequency) the card will be locked write-protected, but there’s a low-tech fix for this: cover the lock switch opening with a small piece of cellophane tape. |
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